<template>
  <div class="home">
    <el-container class="home-container">
      <el-header>
        <div>
          <img src="../assets/heima.png" alt />
          <span>电商后台管理系统</span>
        </div>
        <el-button type="info" @click="logout">退出</el-button>
      </el-header>
      <el-container>
        <el-aside width="200px">
          <!-- 一级菜单 -->
          <el-menu
            background-color="#333744"
            text-color="#fff"
            active-text-color="#ffd04b"
            unique-opened
            router
            :default-active="active"
          >
            <el-submenu :index="item.id+''" v-for="item in MenuList" :key="item.id">
              <template slot="title">
                <i class="el-icon-location"></i>
                <span>{{item.authName}}</span>
              </template>
              <!-- 二级菜单 -->
              <el-menu-item
                :index="'/'+subItem.path"
                v-for="subItem in item.children"
                :key="subItem.id"
                @click="activeNav('/'+subItem.path)"
              >
                <template slot="title">
                  <i class="el-icon-location"></i>
                  <span>{{subItem.authName}}</span>
                </template>
              </el-menu-item>
            </el-submenu>
          </el-menu>
        </el-aside>
        <el-main>
          <router-view></router-view>
        </el-main>
      </el-container>
    </el-container>
  </div>
</template>

<script>
export default {
  data() {
    return {
      MenuList: [],
      active: ""
    };
  },
  created() {
    this.getMenuList();
    this.active = window.sessionStorage.getItem("active");
  },
  methods: {
    logout() {
      sessionStorage.clear();
      this.$router.push("/login");
    },
    getMenuList() {
      this.$axios.get("menus").then(res => {
        if (res.data.meta.status == 200) {
          this.MenuList = res.data.data;
          // console.log(this.MenuList)
        } else {
          this.$message({
            message: res.data.meta.msg,
            type: "error"
          });
        }
      });
    },
    activeNav(actives) {
      window.sessionStorage.setItem("active", actives);
      this.active = actives;
    }
  }
};
</script>
<style lang="less" scoped>
.home {
  height: 100%;
}
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}

.el-main {
  background-color: #eaedf1;
}

.iconfont {
  margin-right: 10px;
}

.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>